Kleptoparatism in tropical seabirds: vulnerability and avoidance responses of a host species, the red-footed booby

Article Abstract:

A study was conducted to assess the significance of kleptoparasitism in red-footed boobies in terms of their relation to frigatebirds. Findings revealed that kleptoparasitism resulted in below 1% of the boobies losing their food. Those flying in a group higher than 50 meters or after dusk had a slimmer probability of being pursued than others. Observations indicated that the coexistence of boobies with frigatebirds may have resulted in avoidance behavior. Lastly, the masked booby should be more at risk than the red-footed booby when returning to land.

Predation (Biology), Parasitism, Frigate-birds, Frigate birds, Boobies (Birds)

---

Nesting of the Northern Fulmar on the western Bering Sea coast

Article Abstract:

Several large, previously unknown, Nothern Fulmar colonies were found during a survey conducted between Jun 1 and Jun 22, 1990 onthe west coast of the Bering Sea. This discovery more than doubled the previously known populations of Northern Fulmars on the Western Bering Sea coast. Fifty-five thousand pairs of the specie were counted in 10 colonies during the survey. Prior to this survey, onle three fulmar nestings areas were known on the Western Bering Sea coast.

Bird populations, Shore birds, Shorebirds

---

Variations in the distributions of marine birds with water mass in the Northern Bering Sea

Article Abstract:

The foraging distributions of seabirds in the Northern Bering Sea were investigated. Data were collected intermittently from the Chirikov Basin lying between Siberia and Alaska from Jul 1984 to Aug 1986. The data collection procedure included the identification and analysis of the behavior of all birds seen within a 300 meter arc from the front of the ship used in the expedition. Significant habitat preferences were found for all but one of the species studied.

Zoogeography

Similar abstracts:

• Abstracts: Molt of Cory's Shearwater during the breeding season. Genetic variability and isolation of Cory's shearwater colonies in the Northeast Atlantic
• Abstracts: Nesting failure of the Wood Stork in a neotropical wetland. Digestibility of three fish species by Double-crested Cormorants
• Abstracts: Isozyme variation in Californian and Turkish populations of the colonizing species Trifolium hirtum. Segregation distortion at isozyme locus Lap-1 in Schlumbergera (Cactaceae) is caused by linkage with the gametophytic self-incompatibility (S) locus
• Abstracts: Hemoglobin biosynthesis in Vitreoscilla stercoraria DW: cloning, expression, and characterization of a new homolog of a bacterial globin gene
• Abstracts: Identification of procaryotic repetitive DNA suitable for use as fingerprinting probes. Differences in the hybridization pattern of Bacillus subtilis genes coding for rRNA depend on the method of DNA preparation

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.